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Omni-MATH / Suppose that a and b are integers with 4<a<b<22. If the average (mean) of the numbers 4,a,b,22 is 13, how many possible pairs (a,b) are there? · Discussion

Discussing Suppose that a and b are integers with 4<a<b<22. If the average (mean) of the numbers 4,a,b,22 is 13, how many possible pairs (a,b) are there? · Omni-MATH

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